Abstract:Bose and Nair (1939) introduced a class of binary, equireplicate and proper designs, which are called Partially Balanced Incomplete Block (PBIB) designs. In these designs the variance of every estimated elementary contrast among treatment effects is not the same. PBIB designs are classified into different types on the basis of their association schemes. In brief, they can be grouped as PBIB(2) designs, PBIB(3) designs and higher associate-class PBIB designs. In each of these groups there are further sub group… Show more
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